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lto: Reduce nesting. 

llvm-svn: 110752
This commit is contained in:
Daniel Dunbar 2010-08-10 23:46:46 +00:00
parent 5657e7b667
commit 919660b2ed
1 changed files with 51 additions and 50 deletions
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101
llvm/tools/lto/LTOModule.cpp
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@ -420,65 +420,66 @@ void LTOModule::findExternalRefs(Value *value, Mangler &mangler) {
} }
void LTOModule::lazyParseSymbols() { void LTOModule::lazyParseSymbols() {
if (!_symbolsParsed) { if (_symbolsParsed)
_symbolsParsed = true; return;
// Use mangler to add GlobalPrefix to names to match linker names. _symbolsParsed = true;
MCContext Context(*_target->getMCAsmInfo());
Mangler mangler(Context, *_target->getTargetData());
// add functions // Use mangler to add GlobalPrefix to names to match linker names.
for (Module::iterator f = _module->begin(); f != _module->end(); ++f) { MCContext Context(*_target->getMCAsmInfo());
if (f->isDeclaration()) Mangler mangler(Context, *_target->getTargetData());
addPotentialUndefinedSymbol(f, mangler);
else
addDefinedFunctionSymbol(f, mangler);
}
// add data // add functions
for (Module::global_iterator v = _module->global_begin(), for (Module::iterator f = _module->begin(); f != _module->end(); ++f) {
e = _module->global_end(); v != e; ++v) { if (f->isDeclaration())
if (v->isDeclaration()) addPotentialUndefinedSymbol(f, mangler);
addPotentialUndefinedSymbol(v, mangler); else
else addDefinedFunctionSymbol(f, mangler);
addDefinedDataSymbol(v, mangler); }
}
// add asm globals // add data
const std::string &inlineAsm = _module->getModuleInlineAsm(); for (Module::global_iterator v = _module->global_begin(),
const std::string glbl = ".globl"; e = _module->global_end(); v != e; ++v) {
std::string asmSymbolName; if (v->isDeclaration())
std::string::size_type pos = inlineAsm.find(glbl, 0); addPotentialUndefinedSymbol(v, mangler);
while (pos != std::string::npos) { else
// eat .globl addDefinedDataSymbol(v, mangler);
pos = pos + 6; }
// skip white space between .globl and symbol name // add asm globals
std::string::size_type pbegin = inlineAsm.find_first_not_of(' ', pos); const std::string &inlineAsm = _module->getModuleInlineAsm();
if (pbegin == std::string::npos) const std::string glbl = ".globl";
break; std::string asmSymbolName;
std::string::size_type pos = inlineAsm.find(glbl, 0);
while (pos != std::string::npos) {
// eat .globl
pos = pos + 6;
// find end-of-line // skip white space between .globl and symbol name
std::string::size_type pend = inlineAsm.find_first_of('\n', pbegin); std::string::size_type pbegin = inlineAsm.find_first_not_of(' ', pos);
if (pend == std::string::npos) if (pbegin == std::string::npos)
break; break;
asmSymbolName.assign(inlineAsm, pbegin, pend - pbegin); // find end-of-line
addAsmGlobalSymbol(asmSymbolName.c_str()); std::string::size_type pend = inlineAsm.find_first_of('\n', pbegin);
if (pend == std::string::npos)
break;
// search next .globl asmSymbolName.assign(inlineAsm, pbegin, pend - pbegin);
pos = inlineAsm.find(glbl, pend); addAsmGlobalSymbol(asmSymbolName.c_str());
}
// make symbols for all undefines // search next .globl
for (StringMap<NameAndAttributes>::iterator it=_undefines.begin(); pos = inlineAsm.find(glbl, pend);
it != _undefines.end(); ++it) { }
// if this symbol also has a definition, then don't make an undefine
// because it is a tentative definition // make symbols for all undefines
if (_defines.count(it->getKey()) == 0) { for (StringMap<NameAndAttributes>::iterator it=_undefines.begin();
NameAndAttributes info = it->getValue(); it != _undefines.end(); ++it) {
_symbols.push_back(info); // if this symbol also has a definition, then don't make an undefine
} // because it is a tentative definition
if (_defines.count(it->getKey()) == 0) {
NameAndAttributes info = it->getValue();
_symbols.push_back(info);
} }
} }
} }